Abul Bashar¹ , Rokib Hasan¹ , Md. Kamal Hossain¹ , Nazmul Alam¹ , Nguyen Vu Hong An² , A K M Mahmudul Huque²

1 Plant Breeding & Crop Improvement Laboratory, Department of Botany, Jahangirnagar University, Savar, Dhaka-1342, Bangladesh
2 Plant Molecular Genetics Laboratory, Division of Life Sciences, Korea University, Seoul 136-701, Republic of Korea
Author    Correspondence author
Plant Gene and Trait, 2015, Vol. 6, No. 7   doi: 10.5376/pgt.2015.06.0007
Received: 19 Oct., 2015    Accepted: 07 Dec., 2015    Published: 19 Dec., 2015

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 Bashar A., Hasan R., Alam N., Hossain M.K., Nguyen Vu Hong An, Mahmudul Huque A.K.M., 2015, Assessment of trait efficiency and selection of parents in brinjal (Solanum melongena L.), Plant Gene and Trait, 6(7): 1-18 (doi: 10.5376/pgt.2015.06.0007)

Twenty one brinjal genotypes with a number of quantitative traits were assessed under biometric analysis for evaluating efficient agro-economic traits and selecting promising parents. No. of fruits in inflorescence/plant, fruits/plant, yield/plant (g), fresh weight/fruit (g), harvesting period and no. of fruits in solitary/plant can consider as favorable attributes for improvement through selection because of their higher GCV, PCV, heritability and genetic advance as percent of mean. Emphasis can be given to characters with high positive direct effect on yield like no. of fruits in inflorescence/plant, fresh weight/fruit (g) and no. of secondary branches/plant. Improvement would be more efficient with selection index I₁₃₄ based on three characters (yield/plant (g) + no. of fruits in inflorescence/plant + no. of fruits in solitary/plant) which showed genetic gain 3.39 and relative efficiency 258.14% significantly higher to other indexes based on four or more characters. Biplot analysis using selection score and decisive trait index indicated that Sada Begun, Debjhuri Hajari, Kajla, and BARI-9 can be the promising parents for future breeding programme.

Intensity; Brinjal (Solanum melongena L.); genetic parameter; correlation coefficient and path coefficient; selection index